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    Comprehensive method for triggering anode bleed events in a fuel cell system
    1.
    发明授权
    Comprehensive method for triggering anode bleed events in a fuel cell system 有权
    在燃料电池系统中触发阳极放电事件的综合方法

    公开(公告)号：US08057941B2

    公开(公告)日：2011-11-15

    申请号：US11764074

    申请日：2007-06-15

    申请人： Jon R. Sienkowski ,  David A. Arthur ,  Abdullah B. Alp ,  Prasad Gade

    发明人： Jon R. Sienkowski ,  David A. Arthur ,  Abdullah B. Alp ,  Prasad Gade

    IPC分类号： H01M8/04 ,  H01M8/24

    CPC分类号： H01M8/04462 ,  H01M8/04231 ,  H01M8/04552 ,  H01M8/04761

    摘要： A method for triggering an anode bleed from split fuel cell stacks in a fuel cell system that employs anode flow-shifting. The method requests the bleed if any one of three different conditions are met. Those conditions include that the concentration of nitrogen in the anode side of the split stacks is above a predetermined percentage, the voltage spread between the maximum cell voltage and the minimum cell voltage of two fuel cells in the split stacks is greater than a predetermined spread voltage and the absolute value of the difference between the overall voltage of the two split stacks is greater than a predetermined voltage. The concentration of nitrogen in the anode can be determined in any suitable manner, such as by a nitrogen cross-over model or a sensor.

    摘要翻译： 一种用于在采用阳极流动变换的燃料电池系统中触发来自分离的燃料电池堆的阳极渗出的方法。 如果符合三种不同条件中的任何一种，则该方法请求出血。 这些条件包括：分离堆叠的阳极侧的氮浓度高于预定百分比，分裂堆叠中的两个燃料电池的最大电池电压和最小电池电压之间的电压扩展大于预定的扩展电压 并且两个分组叠层的总电压之间的差的绝对值大于预定电压。 阳极中氮的浓度可以以任何合适的方式确定，例如通过氮交叉模型或传感器。

    Comprehensive Method for Triggering Anode Bleed Events in a Fuel Cell System
    2.
    发明申请
    Comprehensive Method for Triggering Anode Bleed Events in a Fuel Cell System 有权
    在燃料电池系统中触发阳极爆发事件的综合方法

    公开(公告)号：US20080311442A1

    公开(公告)日：2008-12-18

    申请号：US11764074

    申请日：2007-06-15

    申请人： Jon R. Sienkowski ,  David A. Arthur ,  Abdullah B. Alp ,  Prasad Gade

    发明人： Jon R. Sienkowski ,  David A. Arthur ,  Abdullah B. Alp ,  Prasad Gade

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04462 ,  H01M8/04231 ,  H01M8/04552 ,  H01M8/04761

    摘要： A method for triggering an anode bleed from split fuel cell stacks in a fuel cell system that employs anode flow-shifting. The method requests the bleed if any one of three different conditions are met. Those conditions include that the concentration of nitrogen in the anode side of the split stacks is above a predetermined percentage, the voltage spread between the maximum cell voltage and the minimum cell voltage of two fuel cells in the split stacks is greater than a predetermined spread voltage and the absolute value of the difference between the overall voltage of the two split stacks is greater than a predetermined voltage. The concentration of nitrogen in the anode can be determined in any suitable manner, such as by a nitrogen cross-over model or a sensor.

    摘要翻译： 一种用于在采用阳极流动变换的燃料电池系统中触发来自分离的燃料电池堆的阳极渗出的方法。 如果符合三种不同条件中的任何一种，则该方法请求出血。 这些条件包括：分离堆叠的阳极侧的氮浓度高于预定百分比，分裂堆叠中的两个燃料电池的最大电池电压和最小电池电压之间的电压扩展大于预定的扩展电压 并且两个分组叠层的总电压之间的差的绝对值大于预定电压。 阳极中氮的浓度可以以任何合适的方式确定，例如通过氮交叉模型或传感器。

    Anode Bleed Flow Detection and Remedial Actions
    4.
    发明申请
    Anode Bleed Flow Detection and Remedial Actions 有权
    阳极出血流量检测和补救措施

    公开(公告)号：US20090111000A1

    公开(公告)日：2009-04-30

    申请号：US11928608

    申请日：2007-10-30

    申请人： Abdullah B. Alp ,  Prasad Gade ,  Jon R. Sienkowski

    发明人： Abdullah B. Alp ,  Prasad Gade ,  Jon R. Sienkowski

    IPC分类号： H01M8/00

    CPC分类号： H01M8/0662 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/2457

    摘要： A system for bleeding the anode side of first and second split fuel cell stacks in a fuel cell system that employs anode flow-shifting, where each split stack includes a bleed valve. The system determines that one or both of the bleed valves is stuck in an open position if there is flow through an orifice and a bleed has not been commanded. A shut-off valve is then used to provide the bleed if the cathode exhaust gas is able to dilute the hydrogen in the bled anode exhaust gas. An outlet valve between the first and second split stacks is used to bleed the anode exhaust gas if the cathode exhaust gas is not significant enough to dilute the hydrogen in the anode exhaust gas. If the first or second bleed valve is stuck in the closed position, then the outlet valve is used to provide the bleed.

    摘要翻译： 一种用于将燃料电池系统中的第一和第二分离式燃料电池堆的阳极侧排出的系统，该燃料电池系统采用阳极流动变换，其中每个分体堆叠包括排放阀。 如果流过孔口并且没有命令出血，则该系统确定一个或两个放气阀被卡在打开位置。 然后，如果阴极废气能够稀释排出的阳极废气中的氢气，则使用截止阀来提供渗流。 如果阴极废气不足以稀释阳极废气中的氢气，则第一和第二分裂堆叠之间的出口阀用于排出阳极废气。 如果第一或第二放气阀卡在关闭位置，则出口阀用于提供出血。

    Hydrogen Emissions Control During Up- Transients and Cathode Pulsing
    5.
    发明申请
    Hydrogen Emissions Control During Up- Transients and Cathode Pulsing 有权
    上变频和阴极脉冲期间的氢排放控制

    公开(公告)号：US20080182142A1

    公开(公告)日：2008-07-31

    申请号：US11669890

    申请日：2007-01-31

    申请人： Prasad Gade ,  Jon R. Sienkowski ,  Abdullah B. Alp

    发明人： Prasad Gade ,  Jon R. Sienkowski ,  Abdullah B. Alp

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04089 ,  H01M8/0662

    摘要： A fuel cell system that controls an anode exhaust gas bleed during power up-transients. The fuel cell system includes a by-pass valve that allows compressor air to by-pass the fuel cell stack and be directly emitted into the cathode exhaust gas stream. The system detects a power up-transient by monitoring the rate of closing of the by-pass valve and the rate of change of an increase in the compressor airflow set-point. If these parameters pass a certain threshold, then the system determines that a power up-transient is occurring, and prevents an anode exhaust gas bleed for a predetermined period of time. If cathode pulsing is occurring where power up-transients come one after another, then the system will continuously reset the time period for preventing the anode exhaust gas bleed until a second time limit is reached, where the bleed is then forced.

    摘要翻译： 燃料电池系统，其在上电瞬变期间控制阳极废气流出。 燃料电池系统包括旁通阀，其允许压缩机空气绕过燃料电池堆并且直接排放到阴极废气流中。 该系统通过监测旁通阀的关闭速率和压缩机气流设定点增加的变化率来检测上电瞬变。 如果这些参数通过了一定的阈值，则系统确定正在发生上电瞬变，并且防止阳极废气流出一段预定的时间。 如果阴极脉冲发生在上电瞬间相继出现的情况下，系统将连续重置时间段，以防止阳极废气流失，直到达到第二个时间限制，然后强制泄漏。

    Hydrogen emissions control during up-transients and cathode pulsing
    6.
    发明授权
    Hydrogen emissions control during up-transients and cathode pulsing 有权
    上瞬态和阴极脉冲期间的氢排放控制

    公开(公告)号：US07862941B2

    公开(公告)日：2011-01-04

    申请号：US11669890

    申请日：2007-01-31

    申请人： Prasad Gade ,  Jon R. Sienkowski ,  Abdullah B. Alp

    发明人： Prasad Gade ,  Jon R. Sienkowski ,  Abdullah B. Alp

    IPC分类号： H01M8/04

    CPC分类号： H01M8/04089 ,  H01M8/0662

    摘要： A fuel cell system that controls an anode exhaust gas bleed during power up-transients. The fuel cell system includes a by-pass valve that allows compressor air to by-pass the fuel cell stack and be directly emitted into the cathode exhaust gas stream. The system detects a power up-transient by monitoring the rate of closing of the by-pass valve and the rate of change of an increase in the compressor airflow set-point. If these parameters pass a certain threshold, then the system determines that a power up-transient is occurring, and prevents an anode exhaust gas bleed for a predetermined period of time. If cathode pulsing is occurring where power up-transients come one after another, then the system will continuously reset the time period for preventing the anode exhaust gas bleed until a second time limit is reached, where the bleed is then forced.

    摘要翻译： 燃料电池系统，其在上电瞬变期间控制阳极废气流出。 燃料电池系统包括旁通阀，其允许压缩机空气绕过燃料电池堆并且直接排放到阴极废气流中。 该系统通过监测旁通阀的关闭速率和压缩机气流设定点增加的变化率来检测上电瞬变。 如果这些参数通过了一定的阈值，则系统确定正在发生上电瞬变，并且防止阳极废气流出一段预定的时间。 如果阴极脉冲发生在上电瞬间相继出现的情况下，系统将连续重置时间段，以防止阳极废气流失，直到达到第二个时间限制，然后强制泄漏。

    Anode bleed flow detection and remedial actions
    7.
    发明授权
    Anode bleed flow detection and remedial actions 有权
    阳极泄漏流量检测和补救措施

    公开(公告)号：US08748053B2

    公开(公告)日：2014-06-10

    申请号：US11928608

    申请日：2007-10-30

    申请人： Abdullah B. Alp ,  Prasad Gade ,  Jon R. Sienkowski

    发明人： Abdullah B. Alp ,  Prasad Gade ,  Jon R. Sienkowski

    IPC分类号： H01M8/04

    CPC分类号： H01M8/0662 ,  H01M8/04223 ,  H01M8/04225 ,  H01M8/2457

    摘要： A system for bleeding the anode side of first and second split fuel cell stacks in a fuel cell system that employs anode flow-shifting, where each split stack includes a bleed valve. The system determines that one or both of the bleed valves is stuck in an open position if there is flow through an orifice and a bleed has not been commanded. A shut-off valve is then used to provide the bleed if the cathode exhaust gas is able to dilute the hydrogen in the bled anode exhaust gas. An outlet valve between the first and second split stacks is used to bleed the anode exhaust gas if the cathode exhaust gas is not significant enough to dilute the hydrogen in the anode exhaust gas. If the first or second bleed valve is stuck in the closed position, then the outlet valve is used to provide the bleed.

    摘要翻译： 一种用于将燃料电池系统中的第一和第二分离式燃料电池堆的阳极侧排出的系统，该燃料电池系统采用阳极流动变换，其中每个分体堆叠包括排放阀。 如果流过孔口并且没有命令出血，则该系统确定一个或两个放气阀被卡在打开位置。 然后，如果阴极废气能够稀释排出的阳极废气中的氢气，则使用截止阀来提供渗流。 如果阴极废气不足以稀释阳极废气中的氢气，则第一和第二分裂堆叠之间的出口阀用于排出阳极废气。 如果第一或第二放气阀卡在关闭位置，则出口阀用于提供出血。

    METHOD FOR DETERMINING IF A FUEL CELL STACK IS OVERHEATING USING STACK END PLATE TEMPERATURE SENSORS
    10.
    发明申请
    METHOD FOR DETERMINING IF A FUEL CELL STACK IS OVERHEATING USING STACK END PLATE TEMPERATURE SENSORS 有权
    如果燃料电池堆栈使用堆叠端板温度传感器过热，则确定方法

    公开(公告)号：US20110033766A1

    公开(公告)日：2011-02-10

    申请号：US12909696

    申请日：2010-10-21

    申请人： Abdullah B. Alp ,  David A. Arthur

    发明人： Abdullah B. Alp ,  David A. Arthur

    IPC分类号： H01M8/04

    CPC分类号： G01K13/10 ,  G01K15/00 ,  H01M8/0267 ,  H01M8/04007 ,  H01M8/04358 ,  H01M8/04365 ,  H01M8/04679 ,  H01M8/04686 ,  H01M8/249 ,  H01M2008/1095 ,  Y10T29/49856

    摘要： A method for determining whether a fuel cell stack is overheating. The method measures the temperature of end cells in the stack using end cell temperature sensors, and calculates an average end cell temperature based on the end cell temperature measurements. The method also measures the temperature of a cooling fluid being output from the fuel cell stack. The method determines if any of the measured end cell temperatures are outlying by comparing each end cell temperature measurement to the average. The method determines that the cooling fluid outlet temperature sensor has possibly failed if the cooling fluid outlet temperature is greater than the average end cell temperature and the cooling fluid outlet temperature minus the average end cell temperature is greater than a predetermined temperature value.

    摘要翻译： 一种用于确定燃料电池堆是否过热的方法。 该方法使用端单元温度传感器测量堆叠中的端电池的温度，并且基于端电池温度测量来计算平均端电池温度。 该方法还测量从燃料电池堆输出的冷却流体的温度。 该方法通过将每个终端电池温度测量与平均值进行比较来确定测量的终端电池温度是否偏离。 如果冷却流体出口温度大于平均端电池温度并且冷却流体出口温度减去平均端电池温度大于预定温度值，则该方法确定冷却液出口温度传感器可能失效。